I followed the hijazz tutorial. now I came across a problem.

2013-03-22 11:13:47.766:INFO::Logging to STDERR via org.mortbay.log.StdErrLog
2013-03-22 11:13:50.860:INFO::jetty-6.1.x
2013-03-22 11:13:51.594:INFO::Started SocketConnector@0.0.0.0:9080
2013-03-22 11:13:52.954:INFO::Started SslSocketConnector@0.0.0.0:9443
2013-03-22 11:15:05.423:WARN::/jazz/web/_style/
java.lang.IllegalArgumentException: Resource does not exist: com.example.hijazz.web.ui.internal.page.HiJazzPage.js
    at net.jazz.ajax.model.Resource.resolve(Resource.java:193)
    at net.jazz.ajax.model.Resource.resolveAll(Resource.java:206)
    at net.jazz.ajax.servlets.AbstractResourceServlet.createOperation(AbstractResourceServlet.java:37)
    at net.jazz.ajax.servlets.AbstractResourceServlet.doGet(AbstractResourceServlet.java:47)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
    at net.jazz.ajax.servlets.LoggingHttpServlet.service(LoggingHttpServlet.java:34)
    at org.eclipse.equinox.http.servlet.internal.ServletRegistration.handleRequest(ServletRegistration.java:90)
    at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:111)
    at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:67)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
    at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390)
    at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
    at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
    at org.mortbay.jetty.Server.handle(Server.java:326)
    at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
    at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:924)
    at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
    at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
    at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
    at org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228)
    at org.mortbay.jetty.security.SslSocketConnector$SslConnection.run(SslSocketConnector.java:680)
    at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
2013-03-22 11:15:05.454:WARN::/jazz/web/_js/
java.lang.IllegalArgumentException: Resource does not exist: com.example.hijazz.web.ui.internal.page.HiJazzPage.js
    at net.jazz.ajax.model.Resource.resolve(Resource.java:193)
    at net.jazz.ajax.model.Resource.resolveAll(Resource.java:206)
    at net.jazz.ajax.servlets.AbstractResourceServlet.createOperation(AbstractResourceServlet.java:37)
    at net.jazz.ajax.servlets.AbstractResourceServlet.doGet(AbstractResourceServlet.java:47)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
    at net.jazz.ajax.servlets.LoggingHttpServlet.service(LoggingHttpServlet.java:34)
    at org.eclipse.equinox.http.servlet.internal.ServletRegistration.handleRequest(ServletRegistration.java:90)
    at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:111)
    at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:67)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
    at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390)
    at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
    at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
    at org.mortbay.jetty.Server.handle(Server.java:326)
    at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
    at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:924)
    at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
    at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
    at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
    at org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228)
    at org.mortbay.jetty.security.SslSocketConnector$SslConnection.run(SslSocketConnector.java:680)
    at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)

But the js file is in the project and the location is the same as the tutorial says in the resource/ui/internal/page. But is can not be found.
Who knows the reason?
Thx~~~~